[64] | 1 | /*
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| 2 | Converter for RTCM3 data to RINEX.
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[366] | 3 | $Id: rtcm3torinex.c,v 1.16 2007/01/11 15:32:26 stoecker Exp $
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[283] | 4 | Copyright (C) 2005-2006 by Dirk Stoecker <stoecker@euronik.eu>
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[64] | 5 |
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[283] | 6 | This software is a complete NTRIP-RTCM3 to RINEX converter as well as
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| 7 | a module of the BNC tool for multiformat conversion. Contact Dirk
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| 8 | Stöcker for suggestions and bug reports related to the RTCM3 to RINEX
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| 9 | conversion problems and the author of BNC for all the other problems.
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[64] | 10 |
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| 11 | This program is free software; you can redistribute it and/or modify
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| 12 | it under the terms of the GNU General Public License as published by
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| 13 | the Free Software Foundation; either version 2 of the License, or
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| 14 | (at your option) any later version.
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| 15 |
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| 16 | This program is distributed in the hope that it will be useful,
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| 17 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | GNU General Public License for more details.
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| 20 |
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| 21 | You should have received a copy of the GNU General Public License
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| 22 | along with this program; if not, write to the Free Software
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| 23 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 24 | or read http://www.gnu.org/licenses/gpl.txt
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| 25 | */
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| 26 |
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| 27 | #include <ctype.h>
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| 28 | #include <errno.h>
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| 29 | #include <math.h>
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| 30 | #include <signal.h>
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[320] | 31 | #include <stdarg.h>
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[64] | 32 | #include <stdio.h>
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| 33 | #include <stdlib.h>
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| 34 | #include <string.h>
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| 35 | #include <sys/types.h>
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| 36 | #include <time.h>
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| 37 | #include <unistd.h>
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| 38 |
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[283] | 39 | #ifndef NO_RTCM3_MAIN
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| 40 | #include <getopt.h>
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| 41 | #include <netdb.h>
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| 42 | #include <netinet/in.h>
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| 43 | #include <sys/socket.h>
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| 44 | #endif
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[64] | 45 |
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[283] | 46 | #ifndef sparc
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| 47 | #include <stdint.h>
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| 48 | #endif
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[64] | 49 |
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[95] | 50 | #include "rtcm3torinex.h"
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| 51 |
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[64] | 52 | /* CVS revision and version */
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[366] | 53 | static char revisionstr[] = "$Revision: 1.16 $";
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[64] | 54 |
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| 55 | static uint32_t CRC24(long size, const unsigned char *buf)
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| 56 | {
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| 57 | uint32_t crc = 0;
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| 58 | int i;
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| 59 |
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| 60 | while(size--)
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| 61 | {
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| 62 | crc ^= (*buf++) << (16);
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| 63 | for(i = 0; i < 8; i++)
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| 64 | {
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| 65 | crc <<= 1;
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| 66 | if(crc & 0x1000000)
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| 67 | crc ^= 0x01864cfb;
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| 68 | }
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| 69 | }
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| 70 | return crc;
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| 71 | }
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| 72 |
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| 73 | static int GetMessage(struct RTCM3ParserData *handle)
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| 74 | {
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| 75 | unsigned char *m, *e;
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| 76 | int i;
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| 77 |
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| 78 | m = handle->Message+handle->SkipBytes;
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| 79 | e = handle->Message+handle->MessageSize;
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| 80 | handle->NeedBytes = handle->SkipBytes = 0;
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| 81 | while(e-m >= 3)
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| 82 | {
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| 83 | if(m[0] == 0xD3)
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| 84 | {
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| 85 | handle->size = ((m[1]&3)<<8)|m[2];
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| 86 | if(e-m >= handle->size+6)
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| 87 | {
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| 88 | if((uint32_t)((m[3+handle->size]<<16)|(m[3+handle->size+1]<<8)
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| 89 | |(m[3+handle->size+2])) == CRC24(handle->size+3, m))
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| 90 | {
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| 91 | handle->SkipBytes = handle->size;
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| 92 | break;
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| 93 | }
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| 94 | else
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| 95 | ++m;
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| 96 | }
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| 97 | else
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| 98 | {
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| 99 | handle->NeedBytes = handle->size+6;
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| 100 | break;
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| 101 | }
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| 102 | }
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| 103 | else
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| 104 | ++m;
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| 105 | }
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| 106 | if(e-m < 3)
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| 107 | handle->NeedBytes = 3;
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| 108 |
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| 109 | /* copy buffer to front */
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| 110 | i = m - handle->Message;
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| 111 | if(i && m < e)
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[320] | 112 | memmove(handle->Message, m, (size_t)(handle->MessageSize-i));
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[64] | 113 | handle->MessageSize -= i;
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| 114 |
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| 115 | return !handle->NeedBytes;
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| 116 | }
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| 117 |
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| 118 | #define LOADBITS(a) \
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| 119 | { \
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| 120 | while((a) > numbits) \
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| 121 | { \
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| 122 | if(!size--) break; \
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| 123 | bitfield = (bitfield<<8)|*(data++); \
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| 124 | numbits += 8; \
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| 125 | } \
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| 126 | }
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| 127 |
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| 128 | /* extract bits from data stream
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| 129 | b = variable to store result, a = number of bits */
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| 130 | #define GETBITS(b, a) \
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| 131 | { \
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| 132 | LOADBITS(a) \
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| 133 | b = (bitfield<<(64-numbits))>>(64-(a)); \
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| 134 | numbits -= (a); \
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| 135 | }
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| 136 |
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| 137 | /* extract bits from data stream
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| 138 | b = variable to store result, a = number of bits */
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| 139 | #define GETBITSSIGN(b, a) \
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| 140 | { \
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| 141 | LOADBITS(a) \
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| 142 | b = ((int64_t)(bitfield<<(64-numbits)))>>(64-(a)); \
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| 143 | numbits -= (a); \
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| 144 | }
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| 145 |
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| 146 | #define SKIPBITS(b) { LOADBITS(b) numbits -= (b); }
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| 147 |
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[320] | 148 | struct leapseconds { /* specify the day of leap second */
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| 149 | int day; /* this is the day, where 23:59:59 exists 2 times */
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| 150 | int month; /* not the next day! */
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| 151 | int year;
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| 152 | int taicount;
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| 153 | };
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| 154 | static const int months[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31};
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| 155 | static const struct leapseconds leap[] = {
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| 156 | /*{31, 12, 1971, 11},*/
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| 157 | /*{31, 12, 1972, 12},*/
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| 158 | /*{31, 12, 1973, 13},*/
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| 159 | /*{31, 12, 1974, 14},*/
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| 160 | /*{31, 12, 1975, 15},*/
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| 161 | /*{31, 12, 1976, 16},*/
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| 162 | /*{31, 12, 1977, 17},*/
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| 163 | /*{31, 12, 1978, 18},*/
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| 164 | /*{31, 12, 1979, 19},*/
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| 165 | {30, 06, 1981,20},
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| 166 | {30, 06, 1982,21},
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| 167 | {30, 06, 1983,22},
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| 168 | {30, 06, 1985,23},
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| 169 | {31, 12, 1987,24},
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| 170 | {31, 12, 1989,25},
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| 171 | {31, 12, 1990,26},
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| 172 | {30, 06, 1992,27},
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| 173 | {30, 06, 1993,28},
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| 174 | {30, 06, 1994,29},
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| 175 | {31, 12, 1995,30},
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| 176 | {30, 06, 1997,31},
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| 177 | {31, 12, 1998,32},
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| 178 | {31, 12, 2005,33},
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| 179 | {0,0,0,0} /* end marker */
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| 180 | };
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| 181 | #define GPSLEAPSTART 19 /* 19 leap seconds existed at 6.1.1980 */
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| 182 |
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| 183 | static int longyear(int year, int month)
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| 184 | {
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| 185 | if(!(year % 4) && (!(year % 400) || (year % 100)))
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| 186 | {
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| 187 | if(!month || month == 2)
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| 188 | return 1;
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| 189 | }
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| 190 | return 0;
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| 191 | }
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| 192 |
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| 193 | static int gnumleap(int year, int month, int day)
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| 194 | {
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| 195 | int ls = 0;
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| 196 | const struct leapseconds *l;
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| 197 |
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| 198 | for(l = leap; l->taicount && year >= l->year; ++l)
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| 199 | {
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| 200 | if(year > l->year || month > l->month || day > l->day)
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| 201 | ls = l->taicount - GPSLEAPSTART;
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| 202 | }
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| 203 | return ls;
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| 204 | }
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| 205 |
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| 206 | static void updatetime(int *week, int *tow, int tk)
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| 207 | {
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| 208 | int y,m,d,k,l;
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| 209 | unsigned int j = *week*(7*24*60*60) + *tow + 5*24*60*60+3*60*60;
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| 210 | int glo_daynumber = 0, glo_timeofday;
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| 211 | for(y = 1980; j >= (unsigned int)(k = (l = (365+longyear(y,0)))*24*60*60)
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| 212 | + gnumleap(y+1,1,1); ++y)
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| 213 | {
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| 214 | j -= k; glo_daynumber += l;
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| 215 | }
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| 216 | for(m = 1; j >= (unsigned int)(k = (l = months[m]+longyear(y, m))*24*60*60)
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| 217 | + gnumleap(y, m+1, 1); ++m)
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| 218 | {
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| 219 | j -= k; glo_daynumber += l;
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| 220 | }
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| 221 | for(d = 1; j >= 24UL*60UL*60UL + gnumleap(y, m, d+1); ++d)
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| 222 | j -= 24*60*60;
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| 223 | glo_daynumber -= 16*365+4-d;
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| 224 | glo_timeofday = j-gnumleap(y, m, d);
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| 225 |
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| 226 | if(tk < 5*60*1000 && glo_timeofday > 23*60*60)
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| 227 | *tow += 24*60*60;
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| 228 | else if(glo_timeofday < 5*60 && tk > 23*60*60*1000)
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| 229 | *tow -= 24*60*60;
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| 230 | *tow += tk/1000-glo_timeofday;
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| 231 | if(*tow < 0) {*tow += 24*60*60*7; --*week; }
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| 232 | if(*tow >= 24*60*60*7) {*tow -= 24*60*60*7; ++*week; }
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| 233 | }
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| 234 |
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[71] | 235 | int RTCM3Parser(struct RTCM3ParserData *handle)
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[64] | 236 | {
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| 237 | int ret=0;
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| 238 |
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| 239 | while(!ret && GetMessage(handle))
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| 240 | {
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| 241 | /* using 64 bit integer types, as it is much easier than handling
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| 242 | the long datatypes in 32 bit */
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| 243 | uint64_t numbits = 0, bitfield = 0;
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| 244 | int size = handle->size, type;
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[320] | 245 | int syncf, old = 0;
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[64] | 246 | unsigned char *data = handle->Message+3;
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| 247 |
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| 248 | GETBITS(type,12)
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| 249 | switch(type)
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| 250 | {
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| 251 | case 1001: case 1002: case 1003: case 1004:
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| 252 | if(handle->GPSWeek)
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| 253 | {
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| 254 | int lastlockl1[64];
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| 255 | int lastlockl2[64];
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| 256 | struct gnssdata *gnss;
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| 257 | int i, num, wasamb=0;
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| 258 |
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| 259 | for(i = 0; i < 64; ++i)
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| 260 | lastlockl1[i] = lastlockl2[i] = 0;
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| 261 |
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[320] | 262 | gnss = &handle->DataNew;
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[64] | 263 |
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| 264 | SKIPBITS(12) /* id */
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| 265 | GETBITS(i,30)
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| 266 | if(i/1000 < (int)handle->GPSTOW - 86400)
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| 267 | ++handle->GPSWeek;
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| 268 | handle->GPSTOW = i/1000;
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[320] | 269 | if(gnss->week && (gnss->timeofweek != i || gnss->week
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| 270 | != handle->GPSWeek))
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| 271 | {
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| 272 | handle->Data = *gnss;
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| 273 | memset(gnss, 0, sizeof(*gnss));
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| 274 | old = 1;
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| 275 | }
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[64] | 276 | gnss->timeofweek = i;
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| 277 | gnss->week = handle->GPSWeek;
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| 278 |
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[320] | 279 | GETBITS(syncf,1) /* sync */
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[64] | 280 | GETBITS(i,5)
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| 281 | gnss->numsats = i;
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| 282 | SKIPBITS(4) /* smind, smint */
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| 283 |
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| 284 | for(num = 0; num < gnss->numsats; ++num)
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| 285 | {
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| 286 | int sv, code, l1range, c,l,s,ce,le,se,amb=0;
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| 287 |
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| 288 | GETBITS(sv, 6);
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| 289 | gnss->satellites[num] = (sv < 40 ? sv : sv+80);
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| 290 | /* L1 */
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| 291 | GETBITS(code, 1);
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| 292 | if(code)
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| 293 | {
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| 294 | c = GNSSDF_P1DATA; ce = GNSSENTRY_P1DATA;
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| 295 | l = GNSSDF_L1PDATA; le = GNSSENTRY_L1PDATA;
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| 296 | s = GNSSDF_S1PDATA; se = GNSSENTRY_S1PDATA;
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| 297 | }
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| 298 | else
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| 299 | {
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| 300 | c = GNSSDF_C1DATA; ce = GNSSENTRY_C1DATA;
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| 301 | l = GNSSDF_L1CDATA; le = GNSSENTRY_L1CDATA;
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| 302 | s = GNSSDF_S1CDATA; se = GNSSENTRY_S1CDATA;
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| 303 | }
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| 304 | GETBITS(l1range, 24);
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[327] | 305 | if((l1range&((1<<24)-1)) != 0x80000)
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[64] | 306 | {
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| 307 | gnss->dataflags[num] |= c;
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| 308 | gnss->measdata[num][ce] = l1range*0.02;
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| 309 | }
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| 310 | GETBITSSIGN(i, 20);
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[327] | 311 | if((i&((1<<20)-1)) != 0x80000)
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[64] | 312 | {
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| 313 | gnss->dataflags[num] |= l;
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| 314 | gnss->measdata[num][le] = l1range*0.02+i*0.0005;
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| 315 | }
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| 316 | GETBITS(i, 7);
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| 317 | lastlockl1[sv] = i;
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| 318 | if(handle->lastlockl1[sv] > i)
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| 319 | gnss->dataflags[num] |= GNSSDF_LOCKLOSSL1;
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| 320 | if(type == 1002 || type == 1004)
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| 321 | {
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| 322 | GETBITS(amb,8);
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| 323 | if(amb && (gnss->dataflags[num] & c))
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| 324 | {
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| 325 | gnss->measdata[num][ce] += amb*299792.458;
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| 326 | gnss->measdata[num][le] += amb*299792.458;
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| 327 | ++wasamb;
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| 328 | }
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| 329 | GETBITS(i, 8);
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| 330 | if(i)
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| 331 | {
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| 332 | gnss->dataflags[num] |= s;
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| 333 | gnss->measdata[num][se] = i*0.25;
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[366] | 334 | i /= 4*6;
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[64] | 335 | if(i > 9) i = 9;
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| 336 | else if(i < 1) i = 1;
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| 337 | gnss->snrL1[num] = i;
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| 338 | }
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| 339 | }
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[283] | 340 | gnss->measdata[num][le] /= GPS_WAVELENGTH_L1;
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[64] | 341 | if(type == 1003 || type == 1004)
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| 342 | {
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| 343 | /* L2 */
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| 344 | GETBITS(code,2);
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| 345 | if(code)
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| 346 | {
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| 347 | c = GNSSDF_P2DATA; ce = GNSSENTRY_P2DATA;
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| 348 | l = GNSSDF_L2PDATA; le = GNSSENTRY_L2PDATA;
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| 349 | s = GNSSDF_S2PDATA; se = GNSSENTRY_S2PDATA;
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| 350 | }
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| 351 | else
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| 352 | {
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| 353 | c = GNSSDF_C2DATA; ce = GNSSENTRY_C2DATA;
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| 354 | l = GNSSDF_L2CDATA; le = GNSSENTRY_L2CDATA;
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| 355 | s = GNSSDF_S2CDATA; se = GNSSENTRY_S2CDATA;
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| 356 | }
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| 357 | GETBITSSIGN(i,14);
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[327] | 358 | if((i&((1<<14)-1)) != 0x2000)
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[64] | 359 | {
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| 360 | gnss->dataflags[num] |= c;
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| 361 | gnss->measdata[num][ce] = l1range*0.02+i*0.02
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| 362 | +amb*299792.458;
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| 363 | }
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| 364 | GETBITSSIGN(i,20);
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[327] | 365 | if((i&((1<<20)-1)) != 0x80000)
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[64] | 366 | {
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| 367 | gnss->dataflags[num] |= l;
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| 368 | gnss->measdata[num][le] = l1range*0.02+i*0.0005
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| 369 | +amb*299792.458;
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| 370 | }
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| 371 | GETBITS(i,7);
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| 372 | lastlockl2[sv] = i;
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| 373 | if(handle->lastlockl2[sv] > i)
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| 374 | gnss->dataflags[num] |= GNSSDF_LOCKLOSSL2;
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| 375 | if(type == 1004)
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| 376 | {
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| 377 | GETBITS(i, 8);
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| 378 | if(i)
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| 379 | {
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| 380 | gnss->dataflags[num] |= s;
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| 381 | gnss->measdata[num][se] = i*0.25;
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[366] | 382 | i /= 4*6;
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[64] | 383 | if(i > 9) i = 9;
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| 384 | else if(i < 1) i = 1;
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| 385 | gnss->snrL2[num] = i;
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| 386 | }
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| 387 | }
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[283] | 388 | gnss->measdata[num][le] /= GPS_WAVELENGTH_L2;
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[64] | 389 | }
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| 390 | }
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| 391 | for(i = 0; i < 64; ++i)
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| 392 | {
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| 393 | handle->lastlockl1[i] = lastlockl1[i];
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| 394 | handle->lastlockl2[i] = lastlockl2[i];
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| 395 | }
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[320] | 396 | if(!syncf && !old)
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| 397 | {
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| 398 | handle->Data = *gnss;
|
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| 399 | memset(gnss, 0, sizeof(*gnss));
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| 400 | }
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| 401 | if(!syncf || old)
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| 402 | {
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| 403 | if(wasamb) /* not RINEX compatible without */
|
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| 404 | ret = 1;
|
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| 405 | else
|
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| 406 | ret = 2;
|
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| 407 | }
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[64] | 408 | }
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| 409 | break;
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[320] | 410 | case 1009: case 1010: case 1011: case 1012:
|
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| 411 | {
|
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| 412 | int lastlockl1[64];
|
---|
| 413 | int lastlockl2[64];
|
---|
| 414 | struct gnssdata *gnss;
|
---|
| 415 | int i, num;
|
---|
| 416 | int wasamb=0;
|
---|
| 417 |
|
---|
| 418 | for(i = 0; i < 64; ++i)
|
---|
| 419 | lastlockl1[i] = lastlockl2[i] = 0;
|
---|
| 420 |
|
---|
| 421 | gnss = &handle->DataNew;
|
---|
| 422 |
|
---|
| 423 | SKIPBITS(12) /* id */;
|
---|
| 424 | GETBITS(i,27) /* tk */
|
---|
| 425 |
|
---|
| 426 | updatetime(&handle->GPSWeek, &handle->GPSTOW, i);
|
---|
| 427 | i = handle->GPSTOW*1000;
|
---|
| 428 | if(gnss->week && (gnss->timeofweek != i || gnss->week
|
---|
| 429 | != handle->GPSWeek))
|
---|
| 430 | {
|
---|
| 431 | handle->Data = *gnss;
|
---|
| 432 | memset(gnss, 0, sizeof(*gnss));
|
---|
| 433 | old = 1;
|
---|
| 434 | }
|
---|
| 435 |
|
---|
| 436 | gnss->timeofweek = i;
|
---|
| 437 | gnss->week = handle->GPSWeek;
|
---|
| 438 |
|
---|
| 439 | GETBITS(syncf,1) /* sync */
|
---|
| 440 | GETBITS(i,5)
|
---|
| 441 | gnss->numsats += i;
|
---|
| 442 |
|
---|
| 443 | SKIPBITS(4) /* smind, smint */
|
---|
| 444 |
|
---|
| 445 | for(num = gnss->numsats-i; num < gnss->numsats; ++num)
|
---|
| 446 | {
|
---|
| 447 | int sv, code, l1range, c,l,s,ce,le,se,amb=0;
|
---|
[327] | 448 | int freq;
|
---|
[320] | 449 |
|
---|
| 450 | GETBITS(sv, 6)
|
---|
[327] | 451 | gnss->satellites[num] = sv-1 + PRN_GLONASS_START;
|
---|
| 452 | /* L1 */
|
---|
| 453 | GETBITS(code, 1)
|
---|
| 454 | GETBITS(freq, 5)
|
---|
| 455 | if(code)
|
---|
[320] | 456 | {
|
---|
[327] | 457 | c = GNSSDF_P1DATA; ce = GNSSENTRY_P1DATA;
|
---|
| 458 | l = GNSSDF_L1PDATA; le = GNSSENTRY_L1PDATA;
|
---|
| 459 | s = GNSSDF_S1PDATA; se = GNSSENTRY_S1PDATA;
|
---|
[320] | 460 | }
|
---|
| 461 | else
|
---|
| 462 | {
|
---|
[327] | 463 | c = GNSSDF_C1DATA; ce = GNSSENTRY_C1DATA;
|
---|
| 464 | l = GNSSDF_L1CDATA; le = GNSSENTRY_L1CDATA;
|
---|
| 465 | s = GNSSDF_S1CDATA; se = GNSSENTRY_S1CDATA;
|
---|
| 466 | }
|
---|
| 467 | GETBITS(l1range, 25)
|
---|
| 468 | if((l1range&((1<<25)-1)) != 0x80000)
|
---|
| 469 | {
|
---|
| 470 | gnss->dataflags[num] |= c;
|
---|
| 471 | gnss->measdata[num][ce] = l1range*0.02;
|
---|
| 472 | }
|
---|
| 473 | GETBITSSIGN(i, 20)
|
---|
| 474 | if((i&((1<<20)-1)) != 0x80000)
|
---|
| 475 | {
|
---|
| 476 | gnss->dataflags[num] |= l;
|
---|
| 477 | gnss->measdata[num][le] = l1range*0.02+i*0.0005;
|
---|
| 478 | }
|
---|
| 479 | GETBITS(i, 7)
|
---|
| 480 | lastlockl1[sv] = i;
|
---|
| 481 | if(handle->lastlockl1[sv] > i)
|
---|
| 482 | gnss->dataflags[num] |= GNSSDF_LOCKLOSSL1;
|
---|
| 483 | if(type == 1010 || type == 1012)
|
---|
| 484 | {
|
---|
| 485 | GETBITS(amb,7)
|
---|
| 486 | if(amb && (gnss->dataflags[num] & c))
|
---|
| 487 | {
|
---|
| 488 | gnss->measdata[num][ce] += amb*599584.916;
|
---|
| 489 | gnss->measdata[num][le] += amb*599584.916;
|
---|
| 490 | ++wasamb;
|
---|
| 491 | }
|
---|
| 492 | GETBITS(i, 8)
|
---|
| 493 | if(i)
|
---|
| 494 | {
|
---|
| 495 | gnss->dataflags[num] |= s;
|
---|
| 496 | gnss->measdata[num][se] = i*0.25;
|
---|
[366] | 497 | i /= 4*6;
|
---|
[327] | 498 | if(i > 9) i = 9;
|
---|
| 499 | else if(i < 1) i = 1;
|
---|
| 500 | gnss->snrL1[num] = i;
|
---|
| 501 | }
|
---|
| 502 | }
|
---|
| 503 | gnss->measdata[num][le] /= GLO_WAVELENGTH_L1(freq-7);
|
---|
| 504 | if(type == 1011 || type == 1012)
|
---|
| 505 | {
|
---|
| 506 | /* L2 */
|
---|
| 507 | GETBITS(code,2)
|
---|
[320] | 508 | if(code)
|
---|
| 509 | {
|
---|
[327] | 510 | c = GNSSDF_P2DATA; ce = GNSSENTRY_P2DATA;
|
---|
| 511 | l = GNSSDF_L2PDATA; le = GNSSENTRY_L2PDATA;
|
---|
| 512 | s = GNSSDF_S2PDATA; se = GNSSENTRY_S2PDATA;
|
---|
[320] | 513 | }
|
---|
| 514 | else
|
---|
| 515 | {
|
---|
[327] | 516 | c = GNSSDF_C2DATA; ce = GNSSENTRY_C2DATA;
|
---|
| 517 | l = GNSSDF_L2CDATA; le = GNSSENTRY_L2CDATA;
|
---|
| 518 | s = GNSSDF_S2CDATA; se = GNSSENTRY_S2CDATA;
|
---|
[320] | 519 | }
|
---|
[327] | 520 | GETBITSSIGN(i,14)
|
---|
| 521 | if((i&((1<<14)-1)) != 0x2000)
|
---|
[320] | 522 | {
|
---|
| 523 | gnss->dataflags[num] |= c;
|
---|
[327] | 524 | gnss->measdata[num][ce] = l1range*0.02+i*0.02
|
---|
| 525 | +amb*599584.916;
|
---|
[320] | 526 | }
|
---|
[327] | 527 | GETBITSSIGN(i,20)
|
---|
| 528 | if((i&((1<<20)-1)) != 0x80000)
|
---|
[320] | 529 | {
|
---|
| 530 | gnss->dataflags[num] |= l;
|
---|
[327] | 531 | gnss->measdata[num][le] = l1range*0.02+i*0.0005
|
---|
| 532 | +amb*599584.915;
|
---|
[320] | 533 | }
|
---|
[327] | 534 | GETBITS(i,7)
|
---|
| 535 | lastlockl2[sv] = i;
|
---|
| 536 | if(handle->lastlockl2[sv] > i)
|
---|
| 537 | gnss->dataflags[num] |= GNSSDF_LOCKLOSSL2;
|
---|
| 538 | if(type == 1012)
|
---|
[320] | 539 | {
|
---|
| 540 | GETBITS(i, 8)
|
---|
| 541 | if(i)
|
---|
| 542 | {
|
---|
| 543 | gnss->dataflags[num] |= s;
|
---|
| 544 | gnss->measdata[num][se] = i*0.25;
|
---|
[366] | 545 | i /= 4*6;
|
---|
[320] | 546 | if(i > 9) i = 9;
|
---|
| 547 | else if(i < 1) i = 1;
|
---|
[327] | 548 | gnss->snrL2[num] = i;
|
---|
[320] | 549 | }
|
---|
| 550 | }
|
---|
[327] | 551 | gnss->measdata[num][le] /= GLO_WAVELENGTH_L2(freq-7);
|
---|
[320] | 552 | }
|
---|
[327] | 553 | if(!sv || sv > 24)
|
---|
| 554 | {
|
---|
| 555 | --num; --gnss->numsats;
|
---|
| 556 | }
|
---|
[320] | 557 | }
|
---|
| 558 | for(i = 0; i < 64; ++i)
|
---|
| 559 | {
|
---|
| 560 | handle->lastlockl1[i] = lastlockl1[i];
|
---|
| 561 | handle->lastlockl2[i] = lastlockl2[i];
|
---|
| 562 | }
|
---|
| 563 | if(!syncf && !old)
|
---|
| 564 | {
|
---|
| 565 | handle->Data = *gnss;
|
---|
| 566 | memset(gnss, 0, sizeof(*gnss));
|
---|
| 567 | }
|
---|
| 568 | if(!syncf || old)
|
---|
| 569 | {
|
---|
| 570 | if(wasamb) /* not RINEX compatible without */
|
---|
| 571 | ret = 1;
|
---|
| 572 | else
|
---|
| 573 | ret = 2;
|
---|
| 574 | }
|
---|
| 575 | }
|
---|
| 576 | break;
|
---|
[64] | 577 | }
|
---|
| 578 | }
|
---|
| 579 | return ret;
|
---|
| 580 | }
|
---|
| 581 |
|
---|
| 582 | struct Header
|
---|
| 583 | {
|
---|
| 584 | const char *version;
|
---|
| 585 | const char *pgm;
|
---|
| 586 | const char *marker;
|
---|
| 587 | const char *observer;
|
---|
| 588 | const char *receiver;
|
---|
| 589 | const char *antenna;
|
---|
| 590 | const char *position;
|
---|
| 591 | const char *antennaposition;
|
---|
| 592 | const char *wavelength;
|
---|
| 593 | const char *typesofobs; /* should not be modified outside */
|
---|
| 594 | const char *timeoffirstobs; /* should not be modified outside */
|
---|
| 595 | };
|
---|
| 596 |
|
---|
| 597 | #define MAXHEADERLINES 50
|
---|
| 598 | #define MAXHEADERBUFFERSIZE 4096
|
---|
| 599 | struct HeaderData
|
---|
| 600 | {
|
---|
| 601 | union
|
---|
| 602 | {
|
---|
| 603 | struct Header named;
|
---|
| 604 | const char *unnamed[MAXHEADERLINES];
|
---|
| 605 | } data;
|
---|
| 606 | int numheaders;
|
---|
| 607 | };
|
---|
| 608 |
|
---|
[320] | 609 | struct converttimeinfo {
|
---|
| 610 | int second; /* seconds of GPS time [0..59] */
|
---|
| 611 | int minute; /* minutes of GPS time [0..59] */
|
---|
| 612 | int hour; /* hour of GPS time [0..24] */
|
---|
| 613 | int day; /* day of GPS time [1..28..30(31)*/
|
---|
| 614 | int month; /* month of GPS time [1..12]*/
|
---|
| 615 | int year; /* year of GPS time [1980..] */
|
---|
| 616 | };
|
---|
| 617 |
|
---|
| 618 | static void converttime(struct converttimeinfo *c, int week, int tow)
|
---|
| 619 | {
|
---|
| 620 | int i, k, doy, j; /* temporary variables */
|
---|
| 621 | j = week*(7*24*60*60) + tow + 5*24*60*60;
|
---|
| 622 | for(i = 1980; j >= (k = (365+longyear(i,0))*24*60*60); ++i)
|
---|
| 623 | j -= k;
|
---|
| 624 | c->year = i;
|
---|
| 625 | doy = 1+ (j / (24*60*60));
|
---|
| 626 | j %= (24*60*60);
|
---|
| 627 | c->hour = j / (60*60);
|
---|
| 628 | j %= (60*60);
|
---|
| 629 | c->minute = j / 60;
|
---|
| 630 | c->second = j % 60;
|
---|
| 631 | j = 0;
|
---|
| 632 | for(i = 1; j + (k = months[i] + longyear(c->year,i)) < doy; ++i)
|
---|
| 633 | j += k;
|
---|
| 634 | c->month = i;
|
---|
| 635 | c->day = doy - j;
|
---|
| 636 | }
|
---|
| 637 |
|
---|
| 638 | #ifndef NO_RTCM3_MAIN
|
---|
| 639 | void RTCM3Error(const char *fmt, ...)
|
---|
| 640 | {
|
---|
| 641 | va_list v;
|
---|
| 642 | va_start(v, fmt);
|
---|
| 643 | vfprintf(stderr, fmt, v);
|
---|
| 644 | va_end(v);
|
---|
| 645 | }
|
---|
| 646 | #endif
|
---|
| 647 |
|
---|
| 648 | void RTCM3Text(const char *fmt, ...)
|
---|
| 649 | {
|
---|
| 650 | va_list v;
|
---|
| 651 | va_start(v, fmt);
|
---|
| 652 | vprintf(fmt, v);
|
---|
| 653 | va_end(v);
|
---|
| 654 | }
|
---|
| 655 |
|
---|
[366] | 656 | #define NUMSTARTSKIP 1
|
---|
| 657 |
|
---|
| 658 | ////////////////////////////////////////////////////////////////////
|
---|
| 659 | // Aenderung Perlt - kein check auf vorhandene Daten
|
---|
| 660 | // Abgefragt werden : C1 C2 L1 L2 P1 P2 S1 S2
|
---|
| 661 |
|
---|
[71] | 662 | void HandleHeader(struct RTCM3ParserData *Parser)
|
---|
[64] | 663 | {
|
---|
| 664 | int i;
|
---|
[320] | 665 | int flags = Parser->startflags;
|
---|
[64] | 666 | int data[RINEXENTRY_NUMBER];
|
---|
| 667 | for(i = 0; i < RINEXENTRY_NUMBER; ++i)
|
---|
| 668 | data[i] = 0;
|
---|
| 669 | for(i = 0; i < Parser->Data.numsats; ++i)
|
---|
| 670 | flags |= Parser->Data.dataflags[i];
|
---|
| 671 |
|
---|
[366] | 672 | Parser->dataflag[Parser->numdatatypes] = GNSSDF_C1DATA;
|
---|
| 673 | Parser->datapos[Parser->numdatatypes] = GNSSENTRY_C1DATA;
|
---|
| 674 | data[RINEXENTRY_C1DATA] = ++Parser->numdatatypes;
|
---|
[64] | 675 |
|
---|
[366] | 676 | Parser->dataflag[Parser->numdatatypes] = GNSSDF_C2DATA;
|
---|
| 677 | Parser->datapos[Parser->numdatatypes] = GNSSENTRY_C2DATA;
|
---|
| 678 | data[RINEXENTRY_C2DATA] = ++Parser->numdatatypes;
|
---|
[64] | 679 |
|
---|
[366] | 680 | Parser->dataflag[Parser->numdatatypes] = GNSSDF_P1DATA;
|
---|
| 681 | Parser->datapos[Parser->numdatatypes] = GNSSENTRY_P1DATA;
|
---|
| 682 | data[RINEXENTRY_P1DATA] = ++Parser->numdatatypes;
|
---|
[64] | 683 |
|
---|
[366] | 684 | Parser->dataflag[Parser->numdatatypes] = GNSSDF_P2DATA;
|
---|
| 685 | Parser->datapos[Parser->numdatatypes] = GNSSENTRY_P2DATA;
|
---|
| 686 | data[RINEXENTRY_P2DATA] = ++Parser->numdatatypes;
|
---|
[64] | 687 |
|
---|
[366] | 688 | Parser->dataflag[Parser->numdatatypes] = GNSSDF_L1CDATA;
|
---|
| 689 | Parser->datapos[Parser->numdatatypes] = GNSSENTRY_L1CDATA;
|
---|
| 690 | data[RINEXENTRY_L1DATA] = ++Parser->numdatatypes;
|
---|
| 691 | Parser->dataflag2[data[RINEXENTRY_L1DATA]-1] = GNSSDF_L1PDATA;
|
---|
| 692 | Parser->datapos2[data[RINEXENTRY_L1DATA]-1] = GNSSENTRY_L1PDATA;
|
---|
[64] | 693 |
|
---|
[366] | 694 | Parser->dataflag[Parser->numdatatypes] = GNSSDF_L2CDATA;
|
---|
| 695 | Parser->datapos[Parser->numdatatypes] = GNSSENTRY_L2CDATA;
|
---|
| 696 | data[RINEXENTRY_L2DATA] = ++Parser->numdatatypes;
|
---|
| 697 | Parser->dataflag2[data[RINEXENTRY_L2DATA]-1] = GNSSDF_L2PDATA;
|
---|
| 698 | Parser->datapos2[data[RINEXENTRY_L2DATA]-1] = GNSSENTRY_L2PDATA;
|
---|
[64] | 699 |
|
---|
[366] | 700 | Parser->dataflag[Parser->numdatatypes] = GNSSDF_S1CDATA;
|
---|
| 701 | Parser->datapos[Parser->numdatatypes] = GNSSENTRY_S1CDATA;
|
---|
| 702 | data[RINEXENTRY_S1DATA] = ++Parser->numdatatypes;
|
---|
| 703 | Parser->dataflag2[data[RINEXENTRY_S1DATA]-1] = GNSSDF_S1PDATA;
|
---|
| 704 | Parser->datapos2[data[RINEXENTRY_S1DATA]-1] = GNSSENTRY_S1PDATA;
|
---|
| 705 |
|
---|
| 706 | Parser->dataflag[Parser->numdatatypes] = GNSSDF_S2CDATA;
|
---|
| 707 | Parser->datapos[Parser->numdatatypes] = GNSSENTRY_S2CDATA;
|
---|
| 708 | data[RINEXENTRY_S2DATA] = ++Parser->numdatatypes;
|
---|
| 709 | Parser->dataflag2[data[RINEXENTRY_S2DATA]-1] = GNSSDF_S2PDATA;
|
---|
| 710 | Parser->datapos2[data[RINEXENTRY_S2DATA]-1] = GNSSENTRY_S2PDATA;
|
---|
| 711 |
|
---|
| 712 | Parser->dataflag[Parser->numdatatypes] = GNSSDF_D1CDATA;
|
---|
| 713 | Parser->datapos[Parser->numdatatypes] = GNSSENTRY_D1CDATA;
|
---|
| 714 | data[RINEXENTRY_D1DATA] = ++Parser->numdatatypes;
|
---|
| 715 | Parser->dataflag2[data[RINEXENTRY_D1DATA]-1] = GNSSDF_D1PDATA;
|
---|
| 716 | Parser->datapos2[data[RINEXENTRY_D1DATA]-1] = GNSSENTRY_D1PDATA;
|
---|
| 717 |
|
---|
| 718 | Parser->dataflag[Parser->numdatatypes] = GNSSDF_D2CDATA;
|
---|
| 719 | Parser->datapos[Parser->numdatatypes] = GNSSENTRY_D2CDATA;
|
---|
| 720 | data[RINEXENTRY_D2DATA] = ++Parser->numdatatypes;
|
---|
| 721 | Parser->dataflag2[data[RINEXENTRY_D2DATA]-1] = GNSSDF_D2PDATA;
|
---|
| 722 | Parser->datapos2[data[RINEXENTRY_D2DATA]-1] = GNSSENTRY_D2PDATA;
|
---|
[64] | 723 | }
|
---|
[366] | 724 | // Ende Aenderung Perlt - kein check auf vorhandene Daten
|
---|
[64] | 725 |
|
---|
[366] | 726 |
|
---|
[65] | 727 | void HandleByte(struct RTCM3ParserData *Parser, unsigned int byte)
|
---|
[64] | 728 | {
|
---|
| 729 | Parser->Message[Parser->MessageSize++] = byte;
|
---|
| 730 | if(Parser->MessageSize >= Parser->NeedBytes)
|
---|
| 731 | {
|
---|
| 732 | int r;
|
---|
| 733 | while((r = RTCM3Parser(Parser)))
|
---|
| 734 | {
|
---|
| 735 | int i, j, o;
|
---|
| 736 | struct converttimeinfo cti;
|
---|
| 737 |
|
---|
[320] | 738 | if(Parser->init < NUMSTARTSKIP) /* skip first epochs to detect correct data types */
|
---|
[64] | 739 | {
|
---|
[320] | 740 | ++Parser->init;
|
---|
| 741 |
|
---|
| 742 | if(Parser->init == NUMSTARTSKIP)
|
---|
| 743 | HandleHeader(Parser);
|
---|
| 744 | else
|
---|
| 745 | {
|
---|
| 746 | for(i = 0; i < Parser->Data.numsats; ++i)
|
---|
| 747 | Parser->startflags |= Parser->Data.dataflags[i];
|
---|
| 748 | continue;
|
---|
| 749 | }
|
---|
[64] | 750 | }
|
---|
| 751 | if(r == 2 && !Parser->validwarning)
|
---|
| 752 | {
|
---|
[320] | 753 | RTCM3Text("No valid RINEX! All values are modulo 299792.458!"
|
---|
[64] | 754 | " COMMENT\n");
|
---|
| 755 | Parser->validwarning = 1;
|
---|
| 756 | }
|
---|
| 757 |
|
---|
| 758 | converttime(&cti, Parser->Data.week,
|
---|
[283] | 759 | (int)floor(Parser->Data.timeofweek/1000.0));
|
---|
[320] | 760 | RTCM3Text(" %02d %2d %2d %2d %2d %10.7f 0%3d",
|
---|
[64] | 761 | cti.year%100, cti.month, cti.day, cti.hour, cti.minute, cti.second
|
---|
| 762 | + fmod(Parser->Data.timeofweek/1000.0,1.0), Parser->Data.numsats);
|
---|
| 763 | for(i = 0; i < 12 && i < Parser->Data.numsats; ++i)
|
---|
| 764 | {
|
---|
| 765 | if(Parser->Data.satellites[i] <= PRN_GPS_END)
|
---|
[320] | 766 | RTCM3Text("G%02d", Parser->Data.satellites[i]);
|
---|
[64] | 767 | else if(Parser->Data.satellites[i] >= PRN_GLONASS_START
|
---|
| 768 | && Parser->Data.satellites[i] <= PRN_GLONASS_END)
|
---|
[320] | 769 | RTCM3Text("R%02d", Parser->Data.satellites[i] - (PRN_GLONASS_START-1));
|
---|
[64] | 770 | else
|
---|
[320] | 771 | RTCM3Text("%3d", Parser->Data.satellites[i]);
|
---|
[64] | 772 | }
|
---|
[320] | 773 | RTCM3Text("\n");
|
---|
[64] | 774 | o = 12;
|
---|
| 775 | j = Parser->Data.numsats - 12;
|
---|
| 776 | while(j > 0)
|
---|
| 777 | {
|
---|
[320] | 778 | RTCM3Text(" ");
|
---|
[64] | 779 | for(i = o; i < o+12 && i < Parser->Data.numsats; ++i)
|
---|
| 780 | {
|
---|
| 781 | if(Parser->Data.satellites[i] <= PRN_GPS_END)
|
---|
[320] | 782 | RTCM3Text("G%02d", Parser->Data.satellites[i]);
|
---|
[64] | 783 | else if(Parser->Data.satellites[i] >= PRN_GLONASS_START
|
---|
| 784 | && Parser->Data.satellites[i] <= PRN_GLONASS_END)
|
---|
[320] | 785 | RTCM3Text("R%02d", Parser->Data.satellites[i] - (PRN_GLONASS_START-1));
|
---|
| 786 | else if(Parser->Data.satellites[i] >= PRN_WAAS_START
|
---|
| 787 | && Parser->Data.satellites[i] <= PRN_WAAS_END)
|
---|
| 788 | RTCM3Text("S%02d", Parser->Data.satellites[i] - PRN_WAAS_START);
|
---|
[64] | 789 | else
|
---|
[320] | 790 | RTCM3Text("%3d", Parser->Data.satellites[i]);
|
---|
[64] | 791 | }
|
---|
[320] | 792 | RTCM3Text("\n");
|
---|
[64] | 793 | j -= 12;
|
---|
| 794 | o += 12;
|
---|
| 795 | }
|
---|
| 796 | for(i = 0; i < Parser->Data.numsats; ++i)
|
---|
| 797 | {
|
---|
| 798 | for(j = 0; j < Parser->numdatatypes; ++j)
|
---|
| 799 | {
|
---|
[366] | 800 | int v = 0;
|
---|
| 801 | int df = Parser->dataflag[j];
|
---|
| 802 | int pos = Parser->datapos[j];
|
---|
| 803 | if((Parser->Data.dataflags[i] & df)
|
---|
| 804 | && !isnan(Parser->Data.measdata[i][pos])
|
---|
| 805 | && !isinf(Parser->Data.measdata[i][pos]))
|
---|
| 806 | {
|
---|
| 807 | v = 1;
|
---|
| 808 | }
|
---|
| 809 | else
|
---|
| 810 | {
|
---|
| 811 | df = Parser->dataflag2[j];
|
---|
| 812 | pos = Parser->datapos2[j];
|
---|
| 813 |
|
---|
| 814 | if((Parser->Data.dataflags[i] & df)
|
---|
| 815 | && !isnan(Parser->Data.measdata[i][pos])
|
---|
| 816 | && !isinf(Parser->Data.measdata[i][pos]))
|
---|
| 817 | {
|
---|
| 818 | v = 1;
|
---|
| 819 | }
|
---|
| 820 | }
|
---|
| 821 |
|
---|
| 822 | if(!v)
|
---|
[64] | 823 | { /* no or illegal data */
|
---|
[320] | 824 | RTCM3Text(" ");
|
---|
[64] | 825 | }
|
---|
| 826 | else
|
---|
| 827 | {
|
---|
| 828 | char lli = ' ';
|
---|
| 829 | char snr = ' ';
|
---|
[366] | 830 | if(df & (GNSSDF_L1CDATA|GNSSDF_L1PDATA))
|
---|
[64] | 831 | {
|
---|
| 832 | if(Parser->Data.dataflags[i] & GNSSDF_LOCKLOSSL1)
|
---|
| 833 | lli = '1';
|
---|
| 834 | snr = '0'+Parser->Data.snrL1[i];
|
---|
| 835 | }
|
---|
[366] | 836 | if(df & (GNSSDF_L2CDATA|GNSSDF_L2PDATA))
|
---|
[64] | 837 | {
|
---|
| 838 | if(Parser->Data.dataflags[i] & GNSSDF_LOCKLOSSL2)
|
---|
| 839 | lli = '1';
|
---|
| 840 | snr = '0'+Parser->Data.snrL2[i];
|
---|
| 841 | }
|
---|
[320] | 842 | RTCM3Text("%14.3f%c%c",
|
---|
[366] | 843 | Parser->Data.measdata[i][pos],lli,snr);
|
---|
[64] | 844 | }
|
---|
| 845 | if(j%5 == 4 || j == Parser->numdatatypes-1)
|
---|
[320] | 846 | RTCM3Text("\n");
|
---|
[64] | 847 | }
|
---|
| 848 | }
|
---|
| 849 | }
|
---|
| 850 | }
|
---|
| 851 | }
|
---|
| 852 |
|
---|
[283] | 853 | #ifndef NO_RTCM3_MAIN
|
---|
[366] | 854 | static char datestr[] = "$Date: 2007/01/11 15:32:26 $";
|
---|
[283] | 855 |
|
---|
| 856 | /* The string, which is send as agent in HTTP request */
|
---|
| 857 | #define AGENTSTRING "NTRIP NtripRTCM3ToRINEX"
|
---|
| 858 |
|
---|
| 859 | #define MAXDATASIZE 1000 /* max number of bytes we can get at once */
|
---|
| 860 |
|
---|
| 861 | static const char encodingTable [64] = {
|
---|
| 862 | 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
|
---|
| 863 | 'Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f',
|
---|
| 864 | 'g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v',
|
---|
| 865 | 'w','x','y','z','0','1','2','3','4','5','6','7','8','9','+','/'
|
---|
| 866 | };
|
---|
| 867 |
|
---|
| 868 | /* does not buffer overrun, but breaks directly after an error */
|
---|
| 869 | /* returns the number of required bytes */
|
---|
| 870 | static int encode(char *buf, int size, const char *user, const char *pwd)
|
---|
| 871 | {
|
---|
| 872 | unsigned char inbuf[3];
|
---|
| 873 | char *out = buf;
|
---|
| 874 | int i, sep = 0, fill = 0, bytes = 0;
|
---|
| 875 |
|
---|
| 876 | while(*user || *pwd)
|
---|
| 877 | {
|
---|
| 878 | i = 0;
|
---|
| 879 | while(i < 3 && *user) inbuf[i++] = *(user++);
|
---|
| 880 | if(i < 3 && !sep) {inbuf[i++] = ':'; ++sep; }
|
---|
| 881 | while(i < 3 && *pwd) inbuf[i++] = *(pwd++);
|
---|
| 882 | while(i < 3) {inbuf[i++] = 0; ++fill; }
|
---|
| 883 | if(out-buf < size-1)
|
---|
| 884 | *(out++) = encodingTable[(inbuf [0] & 0xFC) >> 2];
|
---|
| 885 | if(out-buf < size-1)
|
---|
| 886 | *(out++) = encodingTable[((inbuf [0] & 0x03) << 4)
|
---|
| 887 | | ((inbuf [1] & 0xF0) >> 4)];
|
---|
| 888 | if(out-buf < size-1)
|
---|
| 889 | {
|
---|
| 890 | if(fill == 2)
|
---|
| 891 | *(out++) = '=';
|
---|
| 892 | else
|
---|
| 893 | *(out++) = encodingTable[((inbuf [1] & 0x0F) << 2)
|
---|
| 894 | | ((inbuf [2] & 0xC0) >> 6)];
|
---|
| 895 | }
|
---|
| 896 | if(out-buf < size-1)
|
---|
| 897 | {
|
---|
| 898 | if(fill >= 1)
|
---|
| 899 | *(out++) = '=';
|
---|
| 900 | else
|
---|
| 901 | *(out++) = encodingTable[inbuf [2] & 0x3F];
|
---|
| 902 | }
|
---|
| 903 | bytes += 4;
|
---|
| 904 | }
|
---|
| 905 | if(out-buf < size)
|
---|
| 906 | *out = 0;
|
---|
| 907 | return bytes;
|
---|
| 908 | }
|
---|
| 909 |
|
---|
| 910 | static int stop = 0;
|
---|
| 911 |
|
---|
| 912 | struct Args
|
---|
| 913 | {
|
---|
| 914 | const char *server;
|
---|
| 915 | int port;
|
---|
| 916 | const char *user;
|
---|
| 917 | const char *password;
|
---|
| 918 | const char *data;
|
---|
| 919 | const char *headerfile;
|
---|
| 920 | };
|
---|
| 921 |
|
---|
| 922 | /* option parsing */
|
---|
| 923 | #ifdef NO_LONG_OPTS
|
---|
| 924 | #define LONG_OPT(a)
|
---|
| 925 | #else
|
---|
| 926 | #define LONG_OPT(a) a
|
---|
| 927 | static struct option opts[] = {
|
---|
| 928 | { "data", required_argument, 0, 'd'},
|
---|
| 929 | { "server", required_argument, 0, 's'},
|
---|
| 930 | { "password", required_argument, 0, 'p'},
|
---|
| 931 | { "port", required_argument, 0, 'r'},
|
---|
| 932 | { "header", required_argument, 0, 'f'},
|
---|
| 933 | { "user", required_argument, 0, 'u'},
|
---|
| 934 | { "help", no_argument, 0, 'h'},
|
---|
| 935 | {0,0,0,0}};
|
---|
| 936 | #endif
|
---|
[320] | 937 | #define ARGOPT "-d:hp:r:s:u:f:"
|
---|
[283] | 938 |
|
---|
[320] | 939 | static const char *geturl(const char *url, struct Args *args)
|
---|
| 940 | {
|
---|
| 941 | static char buf[1000];
|
---|
| 942 | static char *Buffer = buf;
|
---|
| 943 | static char *Bufend = buf+sizeof(buf);
|
---|
| 944 |
|
---|
| 945 | if(strncmp("ntrip:", url, 6))
|
---|
| 946 | return "URL must start with 'ntrip:'.";
|
---|
| 947 | url += 6; /* skip ntrip: */
|
---|
| 948 |
|
---|
| 949 | if(*url != '@' && *url != '/')
|
---|
| 950 | {
|
---|
| 951 | /* scan for mountpoint */
|
---|
| 952 | args->data = Buffer;
|
---|
| 953 | while(*url && *url != '@' && *url != '/' && Buffer != Bufend)
|
---|
| 954 | *(Buffer++) = *(url++);
|
---|
| 955 | if(Buffer == args->data)
|
---|
| 956 | return "Mountpoint required.";
|
---|
| 957 | else if(Buffer >= Bufend-1)
|
---|
| 958 | return "Parsing buffer too short.";
|
---|
| 959 | *(Buffer++) = 0;
|
---|
| 960 | }
|
---|
| 961 |
|
---|
| 962 | if(*url == '/') /* username and password */
|
---|
| 963 | {
|
---|
| 964 | ++url;
|
---|
| 965 | args->user = Buffer;
|
---|
| 966 | while(*url && *url != '@' && *url != ':' && Buffer != Bufend)
|
---|
| 967 | *(Buffer++) = *(url++);
|
---|
| 968 | if(Buffer == args->user)
|
---|
| 969 | return "Username cannot be empty.";
|
---|
| 970 | else if(Buffer >= Bufend-1)
|
---|
| 971 | return "Parsing buffer too short.";
|
---|
| 972 | *(Buffer++) = 0;
|
---|
| 973 |
|
---|
| 974 | if(*url == ':') ++url;
|
---|
| 975 |
|
---|
| 976 | args->password = Buffer;
|
---|
| 977 | while(*url && *url != '@' && Buffer != Bufend)
|
---|
| 978 | *(Buffer++) = *(url++);
|
---|
| 979 | if(Buffer == args->password)
|
---|
| 980 | return "Password cannot be empty.";
|
---|
| 981 | else if(Buffer >= Bufend-1)
|
---|
| 982 | return "Parsing buffer too short.";
|
---|
| 983 | *(Buffer++) = 0;
|
---|
| 984 | }
|
---|
| 985 |
|
---|
| 986 | if(*url == '@') /* server */
|
---|
| 987 | {
|
---|
| 988 | ++url;
|
---|
| 989 | args->server = Buffer;
|
---|
| 990 | while(*url && *url != ':' && Buffer != Bufend)
|
---|
| 991 | *(Buffer++) = *(url++);
|
---|
| 992 | if(Buffer == args->server)
|
---|
| 993 | return "Servername cannot be empty.";
|
---|
| 994 | else if(Buffer >= Bufend-1)
|
---|
| 995 | return "Parsing buffer too short.";
|
---|
| 996 | *(Buffer++) = 0;
|
---|
| 997 |
|
---|
| 998 | if(*url == ':')
|
---|
| 999 | {
|
---|
| 1000 | char *s2 = 0;
|
---|
| 1001 | args->port = strtol(++url, &s2, 10);
|
---|
| 1002 | if(*s2 || args->port <= 0 || args->port > 0xFFFF)
|
---|
| 1003 | return "Illegal port number.";
|
---|
| 1004 | url = s2;
|
---|
| 1005 | }
|
---|
| 1006 | }
|
---|
| 1007 |
|
---|
| 1008 | return *url ? "Garbage at end of server string." : 0;
|
---|
| 1009 | }
|
---|
| 1010 |
|
---|
[283] | 1011 | static int getargs(int argc, char **argv, struct Args *args)
|
---|
| 1012 | {
|
---|
| 1013 | int res = 1;
|
---|
| 1014 | int getoptr;
|
---|
| 1015 | int help = 0;
|
---|
| 1016 | char *t;
|
---|
| 1017 |
|
---|
| 1018 | args->server = "www.euref-ip.net";
|
---|
| 1019 | args->port = 80;
|
---|
| 1020 | args->user = "";
|
---|
| 1021 | args->password = "";
|
---|
| 1022 | args->data = 0;
|
---|
| 1023 | args->headerfile = 0;
|
---|
| 1024 | help = 0;
|
---|
| 1025 |
|
---|
| 1026 | do
|
---|
| 1027 | {
|
---|
| 1028 | #ifdef NO_LONG_OPTS
|
---|
| 1029 | switch((getoptr = getopt(argc, argv, ARGOPT)))
|
---|
| 1030 | #else
|
---|
| 1031 | switch((getoptr = getopt_long(argc, argv, ARGOPT, opts, 0)))
|
---|
| 1032 | #endif
|
---|
| 1033 | {
|
---|
| 1034 | case 's': args->server = optarg; break;
|
---|
| 1035 | case 'u': args->user = optarg; break;
|
---|
| 1036 | case 'p': args->password = optarg; break;
|
---|
| 1037 | case 'd': args->data = optarg; break;
|
---|
| 1038 | case 'f': args->headerfile = optarg; break;
|
---|
| 1039 | case 'h': help=1; break;
|
---|
| 1040 | case 'r':
|
---|
| 1041 | args->port = strtoul(optarg, &t, 10);
|
---|
| 1042 | if((t && *t) || args->port < 1 || args->port > 65535)
|
---|
| 1043 | res = 0;
|
---|
| 1044 | break;
|
---|
[320] | 1045 | case 1:
|
---|
| 1046 | {
|
---|
| 1047 | const char *err;
|
---|
| 1048 | if((err = geturl(optarg, args)))
|
---|
| 1049 | {
|
---|
| 1050 | RTCM3Error("%s\n\n", err);
|
---|
| 1051 | res = 0;
|
---|
| 1052 | }
|
---|
| 1053 | }
|
---|
| 1054 | break;
|
---|
[283] | 1055 | case -1: break;
|
---|
| 1056 | }
|
---|
| 1057 | } while(getoptr != -1 || !res);
|
---|
| 1058 |
|
---|
| 1059 | datestr[0] = datestr[7];
|
---|
| 1060 | datestr[1] = datestr[8];
|
---|
| 1061 | datestr[2] = datestr[9];
|
---|
| 1062 | datestr[3] = datestr[10];
|
---|
| 1063 | datestr[5] = datestr[12];
|
---|
| 1064 | datestr[6] = datestr[13];
|
---|
| 1065 | datestr[8] = datestr[15];
|
---|
| 1066 | datestr[9] = datestr[16];
|
---|
| 1067 | datestr[4] = datestr[7] = '-';
|
---|
| 1068 | datestr[10] = 0;
|
---|
| 1069 |
|
---|
| 1070 | if(!res || help)
|
---|
| 1071 | {
|
---|
[320] | 1072 | RTCM3Error("Version %s (%s) GPL\nUsage: %s -s server -u user ...\n"
|
---|
[283] | 1073 | " -d " LONG_OPT("--data ") "the requested data set\n"
|
---|
| 1074 | " -f " LONG_OPT("--headerfile ") "file for RINEX header information\n"
|
---|
| 1075 | " -s " LONG_OPT("--server ") "the server name or address\n"
|
---|
| 1076 | " -p " LONG_OPT("--password ") "the login password\n"
|
---|
| 1077 | " -r " LONG_OPT("--port ") "the server port number (default 80)\n"
|
---|
| 1078 | " -u " LONG_OPT("--user ") "the user name\n"
|
---|
[320] | 1079 | "or using an URL:\n%s ntrip:mountpoint[/username[:password]][@server[:port]]\n"
|
---|
| 1080 | , revisionstr, datestr, argv[0], argv[0]);
|
---|
[283] | 1081 | exit(1);
|
---|
| 1082 | }
|
---|
| 1083 | return res;
|
---|
| 1084 | }
|
---|
| 1085 |
|
---|
| 1086 | /* let the output complete a block if necessary */
|
---|
| 1087 | static void signalhandler(int sig)
|
---|
| 1088 | {
|
---|
| 1089 | if(!stop)
|
---|
| 1090 | {
|
---|
[320] | 1091 | RTCM3Error("Stop signal number %d received. "
|
---|
[283] | 1092 | "Trying to terminate gentle.\n", sig);
|
---|
| 1093 | stop = 1;
|
---|
| 1094 | alarm(1);
|
---|
| 1095 | }
|
---|
| 1096 | }
|
---|
| 1097 |
|
---|
| 1098 | /* for some reason we had to abort hard (maybe waiting for data */
|
---|
| 1099 | #ifdef __GNUC__
|
---|
| 1100 | static __attribute__ ((noreturn)) void signalhandler_alarm(
|
---|
| 1101 | int sig __attribute__((__unused__)))
|
---|
| 1102 | #else /* __GNUC__ */
|
---|
| 1103 | static void signalhandler_alarm(int sig)
|
---|
| 1104 | #endif /* __GNUC__ */
|
---|
| 1105 | {
|
---|
[320] | 1106 | RTCM3Error("Programm forcefully terminated.\n");
|
---|
[283] | 1107 | exit(1);
|
---|
| 1108 | }
|
---|
| 1109 |
|
---|
[64] | 1110 | int main(int argc, char **argv)
|
---|
| 1111 | {
|
---|
| 1112 | struct Args args;
|
---|
| 1113 | struct RTCM3ParserData Parser;
|
---|
| 1114 |
|
---|
| 1115 | setbuf(stdout, 0);
|
---|
| 1116 | setbuf(stdin, 0);
|
---|
| 1117 | setbuf(stderr, 0);
|
---|
| 1118 |
|
---|
| 1119 | {
|
---|
| 1120 | char *a;
|
---|
| 1121 | int i=0;
|
---|
| 1122 | for(a = revisionstr+11; *a && *a != ' '; ++a)
|
---|
| 1123 | revisionstr[i++] = *a;
|
---|
| 1124 | revisionstr[i] = 0;
|
---|
| 1125 | }
|
---|
| 1126 |
|
---|
| 1127 | signal(SIGINT, signalhandler);
|
---|
| 1128 | signal(SIGALRM,signalhandler_alarm);
|
---|
| 1129 | signal(SIGQUIT,signalhandler);
|
---|
| 1130 | signal(SIGTERM,signalhandler);
|
---|
| 1131 | signal(SIGPIPE,signalhandler);
|
---|
| 1132 | memset(&Parser, 0, sizeof(Parser));
|
---|
| 1133 | {
|
---|
| 1134 | time_t tim;
|
---|
| 1135 | tim = time(0) - ((10*365+2+5)*24*60*60+LEAPSECONDS);
|
---|
| 1136 | Parser.GPSWeek = tim/(7*24*60*60);
|
---|
| 1137 | Parser.GPSTOW = tim%(7*24*60*60);
|
---|
| 1138 | }
|
---|
| 1139 |
|
---|
| 1140 | if(getargs(argc, argv, &args))
|
---|
| 1141 | {
|
---|
| 1142 | int i, sockfd, numbytes;
|
---|
| 1143 | char buf[MAXDATASIZE];
|
---|
| 1144 | struct hostent *he;
|
---|
| 1145 | struct sockaddr_in their_addr; /* connector's address information */
|
---|
| 1146 |
|
---|
| 1147 | Parser.headerfile = args.headerfile;
|
---|
| 1148 |
|
---|
| 1149 | if(!(he=gethostbyname(args.server)))
|
---|
| 1150 | {
|
---|
[366] | 1151 | RTCM3Error("Function gethostbyname: %s\n", strerror(errno));
|
---|
[64] | 1152 | exit(1);
|
---|
| 1153 | }
|
---|
| 1154 | if((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
|
---|
| 1155 | {
|
---|
[366] | 1156 | RTCM3Error("Function socket: %s\n", strerror(errno));
|
---|
[64] | 1157 | exit(1);
|
---|
| 1158 | }
|
---|
| 1159 | their_addr.sin_family = AF_INET; /* host byte order */
|
---|
| 1160 | their_addr.sin_port = htons(args.port); /* short, network byte order */
|
---|
| 1161 | their_addr.sin_addr = *((struct in_addr *)he->h_addr);
|
---|
| 1162 | memset(&(their_addr.sin_zero), '\0', 8);
|
---|
| 1163 | if(connect(sockfd, (struct sockaddr *)&their_addr,
|
---|
| 1164 | sizeof(struct sockaddr)) == -1)
|
---|
| 1165 | {
|
---|
[366] | 1166 | RTCM3Error("Function connect: %s\n", strerror(errno));
|
---|
[64] | 1167 | exit(1);
|
---|
| 1168 | }
|
---|
| 1169 |
|
---|
| 1170 | if(!args.data)
|
---|
| 1171 | {
|
---|
| 1172 | i = snprintf(buf, MAXDATASIZE,
|
---|
| 1173 | "GET / HTTP/1.0\r\n"
|
---|
| 1174 | "User-Agent: %s/%s\r\n"
|
---|
| 1175 | #ifdef UNUSED
|
---|
| 1176 | "Accept: */*\r\n"
|
---|
| 1177 | "Connection: close\r\n"
|
---|
| 1178 | #endif
|
---|
| 1179 | "\r\n"
|
---|
| 1180 | , AGENTSTRING, revisionstr);
|
---|
| 1181 | }
|
---|
| 1182 | else
|
---|
| 1183 | {
|
---|
| 1184 | i=snprintf(buf, MAXDATASIZE-40, /* leave some space for login */
|
---|
| 1185 | "GET /%s HTTP/1.0\r\n"
|
---|
| 1186 | "User-Agent: %s/%s\r\n"
|
---|
| 1187 | #ifdef UNUSED
|
---|
| 1188 | "Accept: */*\r\n"
|
---|
| 1189 | "Connection: close\r\n"
|
---|
| 1190 | #endif
|
---|
| 1191 | "Authorization: Basic "
|
---|
| 1192 | , args.data, AGENTSTRING, revisionstr);
|
---|
| 1193 | if(i > MAXDATASIZE-40 && i < 0) /* second check for old glibc */
|
---|
| 1194 | {
|
---|
[320] | 1195 | RTCM3Error("Requested data too long\n");
|
---|
[64] | 1196 | exit(1);
|
---|
| 1197 | }
|
---|
| 1198 | i += encode(buf+i, MAXDATASIZE-i-5, args.user, args.password);
|
---|
| 1199 | if(i > MAXDATASIZE-5)
|
---|
| 1200 | {
|
---|
[320] | 1201 | RTCM3Error("Username and/or password too long\n");
|
---|
[64] | 1202 | exit(1);
|
---|
| 1203 | }
|
---|
[366] | 1204 | buf[i++] = '\r';
|
---|
| 1205 | buf[i++] = '\n';
|
---|
| 1206 | buf[i++] = '\r';
|
---|
| 1207 | buf[i++] = '\n';
|
---|
[64] | 1208 | }
|
---|
| 1209 | if(send(sockfd, buf, (size_t)i, 0) != i)
|
---|
| 1210 | {
|
---|
[366] | 1211 | RTCM3Error("Function send: %s\n", strerror(errno));
|
---|
[64] | 1212 | exit(1);
|
---|
| 1213 | }
|
---|
| 1214 | if(args.data)
|
---|
| 1215 | {
|
---|
| 1216 | int k = 0;
|
---|
| 1217 | while(!stop && (numbytes=recv(sockfd, buf, MAXDATASIZE-1, 0)) != -1)
|
---|
| 1218 | {
|
---|
| 1219 | if(!k)
|
---|
| 1220 | {
|
---|
| 1221 | if(numbytes < 12 || strncmp("ICY 200 OK\r\n", buf, 12))
|
---|
| 1222 | {
|
---|
[320] | 1223 | RTCM3Error("Could not get the requested data: ");
|
---|
[64] | 1224 | for(k = 0; k < numbytes && buf[k] != '\n' && buf[k] != '\r'; ++k)
|
---|
| 1225 | {
|
---|
[320] | 1226 | RTCM3Error("%c", isprint(buf[k]) ? buf[k] : '.');
|
---|
[64] | 1227 | }
|
---|
[320] | 1228 | RTCM3Error("\n");
|
---|
[64] | 1229 | exit(1);
|
---|
| 1230 | }
|
---|
| 1231 | ++k;
|
---|
| 1232 | }
|
---|
| 1233 | else
|
---|
| 1234 | {
|
---|
| 1235 | int z;
|
---|
| 1236 | for(z = 0; z < numbytes && !stop; ++z)
|
---|
[320] | 1237 | HandleByte(&Parser, (unsigned int) buf[z]);
|
---|
[64] | 1238 | }
|
---|
| 1239 | }
|
---|
| 1240 | }
|
---|
| 1241 | else
|
---|
| 1242 | {
|
---|
| 1243 | while((numbytes=recv(sockfd, buf, MAXDATASIZE-1, 0)) > 0)
|
---|
| 1244 | {
|
---|
| 1245 | fwrite(buf, (size_t)numbytes, 1, stdout);
|
---|
| 1246 | }
|
---|
| 1247 | }
|
---|
| 1248 |
|
---|
| 1249 | close(sockfd);
|
---|
| 1250 | }
|
---|
| 1251 | return 0;
|
---|
| 1252 | }
|
---|
[283] | 1253 | #endif /* NO_RTCM3_MAIN */
|
---|